Any neat trick to convert print -rl -- **/** into a tree?

Any neat trick to convert print -rl -- **/** into a tree?

[Sebastian Gniazdowski]

Hello,
I'm blank at this but seeing wc -c > 60 various surprising Zsh
expansions I suspect that it can be done: converting **/** into a
tree, i.e. into output that looks like e.g. output of tree command (OS
X):

├── LICENSE
├── Makefile
├── README.md
├── TODO
├── _n-kill
├── awk
│   ├── input
│   └── levdist.awk
├── doc
│   ├── generate_single_file
│   ├── img
│   │   └── n-history2.png
│   ├── install.sh
│   ├── n-preview
│   └── zshnavigationtools.plugin.zsh

Can it be done? The tree could use only indentation with spaces, or
"|". "\", "-" characters, or the box-drawing characters.

Best regards,
Sebastian Gniazdowski

Re: Any neat trick to convert print -rl -- **/** into a tree?

[Bart Schaefer]

On Sep 17,  5:54pm, Sebastian Gniazdowski wrote:
} Subject: Any neat trick to convert print -rl -- **/** into a tree?
}
} Hello,
} I'm blank at this but seeing wc -c > 60 various surprising Zsh
} expansions I suspect that it can be done: converting **/**

Do you intend that second ** to be interpreted GLOB_STAR_SHORT, or
is that a typo?

} into a tree, i.e. into output that looks like e.g. output of tree
} command

It's difficult if not impossible to do this *during* the glob pass,
because the sorting ends up confused, but if you capture the result
in a variable:

    () {
      emulate -L zsh -o extendedglob
      local x=(**/*)
      print -l ${x//([^\/]##\/)/|- }
    }

Refine the replacement as desired.

Re: Any neat trick to convert print -rl -- **/** into a tree?

[Sebastian Gniazdowski]

On 18 September 2016 at 00:51, Bart Schaefer <schaefer@brasslantern.com> wrote:
> On Sep 17,  5:54pm, Sebastian Gniazdowski wrote:
> } Subject: Any neat trick to convert print -rl -- **/** into a tree?
> }
> } Hello,
> } I'm blank at this but seeing wc -c > 60 various surprising Zsh
> } expansions I suspect that it can be done: converting **/**
>
> Do you intend that second ** to be interpreted GLOB_STAR_SHORT, or
> is that a typo?

*/** didn't have expected effect so I went to **/**, didn't thought
about **/* :|

> } into a tree, i.e. into output that looks like e.g. output of tree
> } command
>
> It's difficult if not impossible to do this *during* the glob pass,
> because the sorting ends up confused, but if you capture the result
> in a variable:
>
>     () {
>       emulate -L zsh -o extendedglob
>       local x=(**/*)
>       print -l ${x//([^\/]##\/)/|- }
>     }
>
> Refine the replacement as desired.

Thanks!

Best regards,
Sebastian Gniazdowski